<template>
  <div id="app">
    <table class="tb">
      <tr>
        <th>编号</th>
        <th>品牌名称</th>
        <th>创立时间</th>
        <th>操作</th>
      </tr>
      <!-- 循环渲染的元素tr -->
      <tr v-for="(item,index) in list" :key="index">
        <td>{{item.id}}</td>
        <td>{{item.name}}</td>
        <td>{{item.time}}</td>
        <td>
          <!-- 绑定点击事件 索引号为参数 -->
          <button @click="del(index)">删除</button>
        </td>
      </tr>
      <tr>
        <!-- 当数组的长度等于0时,就显示 -->
        <td colspan="4" v-show=" list.length > 0 ? isShow : !isShow">没有数据咯~</td>
      </tr>
    </table>
  </div>
</template>

<script>
export default {
  data() {
    return {
      list: [
        { id: 1, name: "奔驰", time: "2020-08-01" },
        { id: 2, name: "宝马", time: "2020-08-02" },
        { id: 3, name: "奥迪", time: "2020-08-03" },
      ],
      // 默认隐藏
      isShow:false
    };
  },
  methods:{
    del(id){
    // 根据id号删除元素
    this.list.splice(id,1)
  }
  }
}
</script>

<style>
#app {
  width: 600px;
  margin: 10px auto;
}

.tb {
  border-collapse: collapse;
  width: 100%;
}

.tb th {
  background-color: #0094ff;
  color: white;
}

.tb td,
.tb th {
  padding: 5px;
  border: 1px solid black;
  text-align: center;
}

.add {
  padding: 5px;
  border: 1px solid black;
  margin-bottom: 10px;
}
</style>